code: def test_heatmap_to_image_rgb(heatmap, boxrgb):
      rgba_heatmap = heatmap_to_image(heatmap)
      assert heatmap.shape[:2] == (
          rgba_heatmap.width,
          rgba_heatmap.height,
      )
      assert_pixel_by_pixel_equal(rgba_heatmap, boxrgb)
  
imports: import pytest
  import numpy
  from eli5.base import Explanation, TargetExplanation
  from eli5.formatters.image import format_as_image, heatmap_to_image, expand_heatmap, _validate_heatmap, _update_alpha, _cap_alpha, _overlay_heatmap
  from .utils_image import assert_pixel_by_pixel_equal
label_desc: Use image node_id 8 for calling a global function with example usage: test_heatmap_to_image_rgb(heatmap, boxrgb) without return types